Transcript Slide 1

Measurement
What kinds of things can you
measure?
Make a list.
1.
2.
3.
4.
5.
6.
Height
Weight (Mass)
Distance
………….
………………
…………………
Are any things on your list similar to each
other, can you group them??
Science Differentiation in action
Important measurements include:
Time
-
Length
-
Distance between two points
Area
-
Amount of surface
…..
Volume -
Amount of space an object takes up
Mass
Amount of matter in an object
-
Temperature -
How hot or cold something is
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Units
What are they??
Standard we use for comparing
measurements
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Long, long ago…
Length:
Cubit: elbow to tip of finger
Span: thumb to little finger
Why do some people use miles and inches and
other people use centimetres and kilometres??
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Units
Standard Internationale
S.I. unit
S.I. is the scientific unit used by scientists
and engineers across the world
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What instrument do we use to measure
temperature?
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What is the unit for temperature?
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How do you measure mass?
Kilograms (kg)
Mass is measured in ________________
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What unit do we use to measure time?
seconds
S.I. unit for time is __________
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How can we measure length?
• Ruler or metre stick
• Opisometer
• Trundle wheel
• Callipers
• Vernier callipers
metres (m).
Length is measured in __________
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What is the unit for length?
Kilometres (km) = 1000m
Metre (m)= 100cm
Centimetre (cm) = 10 millimetres (mm)
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What units do we use for measuring very long distances?
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What do we use to accurately measure very short distances?
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Remember!
Measurement
Length - Distance between two points
Units
m
Time Temperature Mass - Amount of matter in an object
kg
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Question to think about!
What would it be like to live in a world without measurement?
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What do we use to measure curved lines
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How can we measure area?
Regular shape
Use a ruler to measure the length
of each side. Multiply one side by
the other to find the area.
l
b
Irregular shape
Use graph paper. Draw around
the object and then count the
squares inside the lines.
metres squared (m2).
Area is measured in__________________
Area = l x b
You must know
the area of each
square on the
graph paper.
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How can we measure volume?
Regular object
Use a ruler to measure length,
breath and height.
l
b
h
Multiply length by breath by
height.
Irregular object or liquid
Use a measuring cylinder.
How?
metres cubed (m3).
Volume is measured in ________________
(v = l x b x h)
Science Differentiation in action
Remember!
Measurement
Units
Length - Distance between two points
m
Area
m2
- Amount of surface
Volume - Amount of space an object takes
up
m3
Mass - Amount of matter in an object
kg
Science Differentiation in action
Review Questions
1. What do we use
to find the volume
of an irregular
solid?
2. What do we use
to find the mass of
an object?
HINT
HINT